A Particle Moving With Velocity Equal To 0.4 m/s is Subjected To An Acceleration Of  0.15 m/s2 for 2 Sec In A Direction At Right Angle To Its Direction Of Motion. What Is The Magnitude Of Resultant Velocity?

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A particle moving with velocity equal to 0.4 m/s is subjected to an acceleration of  0.15 m/s2 for 2 sec in a direction at right angle to its direction of motion. What is the magnitude of resultant velocity?


Correct option is

0.5 m/s


In vector from, 1st equation of motion is


Here u = 0.4 m/s; a = 0.15 m/s2= 2s and 



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